The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. It provides client accuracies typically within a millisecond on LANs and up to a few tens of milliseconds on WANs relative to a primary server synchronized to Coordinated Universal Time (UTC) via a Global Positioning Service (GPS) receiver, for example.

timekpr will track and control the computer usage of your user accounts. You can limit their daily usage based on a timed access duration and configure periods of day when they can or cannot log in. With this application, administrators can limit account login time duration or account access hours. It has support for GNOME, KDE, and XFCE and uses time and access Linux PAM modules. It is currently limited to Ubuntu only.

TimeGT is powerful life and task management software that keeps data in sync using a secure server. It offers numerous ways to organize tasks, ideas, and notes. It will suit a wide range of time management techniques used by different people. The following filters are available and can be used in any combination: a project tree of arbitrary depth; task life-cycle supporting Timing folders (supports GTD method); any number of Tags added to a task and used for filtering; and a Start and Due dates based Horizon filter. It keeps tasks up-to-date between any number of computers. Tasks are mediated through the dedicated secure Sync server, and are protected when they travel over the Internet (RSA of adequate length is used). Information is accessible everywhere.

Countdown JS is a JavaScript class that displays (and updates) the time left until a time specified by the user. Times can be provided in any time units, and they will be recalculated to the specified time units. It is possible to use a format string to specify which units or text will appear in the displayed countdown and which text must be hidden if a certain unit reaches 0. Format strings also accept HTML tags, thus providing you the ability to format your countdown as you desire.

LibHdate is a small library for the Hebrew calendar with dates, holidays, and reading sequence. It is written in C and includes bindings for Pascal, Perl, {ython, PHP, and Ruby. hcal and hdate are small example command line programs written in C. This release brings many new options, features, and bugfixes to the two example programs hcal and hdate. The changes to the underlying function library include a few minor bugfixes, deprecation of a series of string functions in favor of a single new one with better memory allocation, and hard-coding of core
elements of the Hebrew localization so that Hebrew can be displayed in all locales. Some selected highlights: config files for storing defaults; user-defined menus (defined in a config file); sunset awareness, based on coordinates given or system timezone and guesswork; optional easier entry of coordinates (N, S, E, W, dd:mm:ss); minhag customization for Shabbat times; and Hebrew information in Hebrew characters (for all locales). hcal can display in 3-month mode, in color, and with footnotes and Shabbat information. hdate can output data in CSV format, suitable for spreadsheets, awk, etc. hdate has many format enhancements.

Ace snow creates a snow falling effect for Titanium apps. It creates animated flakes which fall on the application window starting from a random position at the top of the screen and disappear when they fall below the top of the screen. The flakes animation can be paused and resumed any time. The image, quantity, and speed of the snow flakes are configurable parameters.

Titanium Countdown shows a time countdown in Titanium label objects. It can start a time countdown from given time left to the end. It shows the remaining time in label objects of a Titanium application which display the time left in years, months, days, hours, minutes, and seconds. The object can also pause and resume the time countdown any time.

Gideros Countdown class displays (and updates) the time left until a time provided by the user. The time can be provided in any time units, and they will be recalculated to specified time units. It is possible to specify which units or text will appear in countdown and which text must be hidden if a certain unit reaches 0 by using labels for each time unit.

Night Time Display is an Android client which displays the current time in an LED font. It can be used as a bedtime clock. It has a custom set of themes to view different font colors, can change to 24hr/12hr mode, can hide the seconds, can blink the separator, displays a large font and is stretchable according to the screen size, and supports both Landscape and Portrait modes.